The latest revision of google earth has a history "button" which opens a slider. The slider can be used to change the date of the image. Using this
slider, you can see changes in imagery.
This page has a few changes I noted on the Tonopah Test Range. I have some changes elsewhere around the range that I will add later.
Using the "history" button, I pulled this old image of Indian Springs (KINS). You can see a plane that has a wingspan of about 100ft. There are not
too many planes that wide. I pasted an outline of a Global Hawk on the image for comparison. It looks like a good match. A U2 has the similar wing
span, but the wings are "fatter".
The image is dated 9/5/1999. The Global Hawk first flew 2/28/1998, so it hadn't been flying for long before appearing at KINS.
I'll eventually add this to my google earth history page, but here are some interesting photos of the area centered at
N 37 42 50.27 w116 7 3.94
This area is just over the border near the Cedar Pipeline Ranch.
I happened to be their in May 2003, though I didn't log the exact date. You can see the dirt haulers taking dirt from a road that would have access
to these area on google earth and moving it to where the Keno airstrip was being built. www.lazygranch.com...
I thought this was a lot of work at the time since the areas are a few miles apart. But my thinking at the time was some soils expert reviewed
historical data from samples in the area and thought this spot in the hills had the best soil for use in making the runway. Now I'm not so sure. The
round spot in the first photo is pretty odd.
Here is another facility that popped up using the history button. It looks like a pad and not a building, since there is no shadow. The area in
question is in the upper left corner of the image.